Search results for " PRIN"
showing 10 items of 1809 documents
Early Brain Sensitivity to Word Frequency and Lexicality During Reading Aloud and Implicit Reading
2019
The present study investigated the influence of lexical word properties on the early stages of visual word processing (<250 ms) and how the dynamics of lexical access interact with task-driven top-down processes. We compared the brain's electrical response (event-related potentials, ERPs) of 39 proficient adult readers for the effects of word frequency and word lexicality during an explicit reading task versus a visual immediate-repetition detection task where no linguistic intention is required. In general, we observed that left-lateralized processes linked to perceptual expertise for reading are task independent. Moreover, there was no hint of a word frequency effect in early ERPs, while …
Nonlinear PCA for Spatio-Temporal Analysis of Earth Observation Data
2020
Remote sensing observations, products, and simulations are fundamental sources of information to monitor our planet and its climate variability. Uncovering the main modes of spatial and temporal variability in Earth data is essential to analyze and understand the underlying physical dynamics and processes driving the Earth System. Dimensionality reduction methods can work with spatio-temporal data sets and decompose the information efficiently. Principal component analysis (PCA), also known as empirical orthogonal functions (EOFs) in geophysics, has been traditionally used to analyze climatic data. However, when nonlinear feature relations are present, PCA/EOF fails. In this article, we pro…
Avisos y relaciones manuscritos y impresos sobre catastrofes naturales y sucesos prodigiosos en Sicilia durante el siglo XVIII
2021
In the eighteenth century there is a large number of stories, both handwritten and in print, that describe extraordinary and unlucky events of different kinds: monstrosities, eclipses, or storms, floods, earthquakes, eruptions, etc. These stories, with respect to Sicily, take the form of occasional printed news, although sometimes they may be included in serials organized by different criteria (topographic/chronological/subject). Surviving documents in archives and libraries offer some opportunities to deepen the study of issues concerning the circulation and dissemination of news about the same event, their credibility, their formal characters and content. Very rare printed ephemera and ha…
Tax compliance and wealth inequality
2019
In this work, we theoretically approach optimal taxing in a public good provision context in a society where wealth is Pareto distributed. Our main result shows that high levels of wealth inequalit...
Leading indicator properties of US high-yield credit spreads.
2010
Abstract In this paper we examine the out-of-sample forecast performance of high-yield credit spreads for real-time and revised data regarding employment and industrial production in the US. We evaluate models using both a point forecast and a probability forecast exercise. Our main findings suggest that the best results come from using only a few factors obtained by pooling information from a number of sector-specific high-yield credit spreads. In particular, for employment and at short-run horizons, there is a gain from using a principal components model fitted to high-yield credit spreads compared to the prediction produced by benchmarks. Moreover, forecast results based on revised data …
A Stochastic Variance Factor Model for Large Datasets and an Application to S&P Data
2008
The aim of this paper is to consider multivariate stochastic volatility models for large dimensional datasets. We suggest the use of the principal component methodology of Stock and Watson [Stock, J.H., Watson, M.W., 2002. Macroeconomic forecasting using diffusion indices. Journal of Business and Economic Statistics, 20, 147–162] for the stochastic volatility factor model discussed by Harvey, Ruiz, and Shephard [Harvey, A.C., Ruiz, E., Shephard, N., 1994. Multivariate Stochastic Variance Models. Review of Economic Studies, 61, 247–264]. We provide theoretical and Monte Carlo results on this method and apply it to S&P data.
"Facta non verba" : an experiment on pledging and giving
2015
International audience; We design an experiment to investigate whether asking people to state how much they will donate to a charity (i.e., to pledge) increases their actual donation. Individuals’ endowment is either certain or a random variable. We study different types of pledges, namely, private, public and irrevocable, which differ in terms of the cost to the individual for not keeping the promise. We show that in absence of endowment uncertainty, private and public pledges are associated with lower donations as compared to donations in the no-pledge case: private pledges slightly reduce donations and public pledges reduce them more significantly. Donations increase with uncertainty (in…
Aktuālā Eiropas Savienības Tiesas judikatūra Eiropas Aresta ordera lietās
2019
Bakalaura darba “Aktuālā Eiropas Savienības Tiesas judikatūra Eiropas Aresta ordera lietās” mērķis ir izpētīt astoņus nozīmīgus Eiropas Savienības Tiesas spriedumus Eiropas Aresta ordera lietās. Ievērojot minēto, bakalaura darbs sniedz ieskatu Eiropas Savienības Tiesas nesenajos spriedumos, kuros skaidroti Padomes Pamatlēmumā par Eiropas Aresta orderi un par nodošanas procedūrām starp dalībvalstīm ietvertie jēdzieni “tiesas nolēmums” un “tiesu iestāde”, kā arī aplūkoti Pamatlēmumā ietvertie Eiropas Aresta ordera neizpildes pamati un Eiropas Aresta ordera ietekme uz personas pamattiesībām. Darba ietvaros Autore akcentē galvenos problēmjautājumus Eiropas Aresta ordera piemērošanā un analizē s…
Eiropas Savienības dalībvalsts Konstitucionālās tiesas tiesības atzīt Eiropas Savienības tiesas spriedumu par spēkā neesošu savā teritorijā
2021
Eiropas Savienības tiesisko stabilitāti 2020.gadā satricināja nebijis precedents –Apvienotās Karalistes izstāšanās no Savienības. Savienības turpmākās pastāvēšanas jautājumi kļuva arvien aktuālāki, spilgtāk iezīmējot jau esošās domstarpības starp dalībvalstu un Savienības interesēm. Fundaments, kas satur Savienību kopā, pamatā atspoguļojas Savienības tiesībās un to piemērošanā. Tomēr, pamanāma ir kļuvusi arī šī fundamenta šķelšana, dalībvalstīm pakāpeniski ievirzot tendenci Eiropas Savienības Tiesas kompetences apšaubīšanā. 2020.gada, vienu no spilgtākajiem tiesu precedentiem, raksturo Vācijas Konstitucionālās tiesas spriedums, ar kuru Eiropas Savienības Tiesas nolēmums atzīts par spēkā nee…